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dmar836
Samba Member
Joined: September 17, 2016
Posts: 50
Location: Midwest, USA
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 Posted: Mon Sep 19, 2016 9:27 am Post subject: Re: Best street head to hit the market in many years |
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Received mine about the same time as Brian. Look great! Mine were not the CNC so have no step. Has the same interesting casting marks in the chambers. Stem heights are within .005.
Dave
KC |
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Matthew
Samba Member
Joined: January 29, 2004
Posts: 1760
Location: Eastern Tennessee
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| Posted: Wed Sep 21, 2016 3:12 pm Post subject: Re: Best street head to hit the market in many years |
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| dmar836 wrote: |
Received mine about the same time as Brian. Look great! Mine were not the CNC so have no step. Has the same interesting casting marks in the chambers. Stem heights are within .005.
Dave
KC |
Just to clarify, mine are as cast chambers bored to 90.5/92 and have the step pictured on the previous page. I'm thinking of boring the step to 90.5 + and running my cylinder deck at .020 - .025 so I can keep it tight.
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32vsnake
Samba Member
Joined: March 29, 2009
Posts: 133
Location: Mill Bay, Vancouver Island
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| Posted: Wed Sep 21, 2016 3:18 pm Post subject: Re: Best street head to hit the market in many years |
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Just ordered a set that will be bolted onto a 1915.... now the shipping/waiting game begins 
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Wed Sep 21, 2016 7:00 pm Post subject: Re: Best street head to hit the market in many years |
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| $ 30 for cnc chamber...holy shit batman, thats awesome. |
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dsrtfox
Samba Member
Joined: August 25, 2009
Posts: 443
Location: Phoenix
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| Posted: Thu Sep 22, 2016 2:35 pm Post subject: Re: Best street head to hit the market in many years |
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| It's hard to imagine that CB has no way of removing the step if requested. |
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Matthew
Samba Member
Joined: January 29, 2004
Posts: 1760
Location: Eastern Tennessee
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| Posted: Thu Sep 22, 2016 3:07 pm Post subject: Re: Best street head to hit the market in many years |
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| dsrtfox wrote: |
| It's hard to imagine that CB has no way of removing the step if requested. |
I agree. My complaint is that the step was unexpected and doesn't fit my build plan. Now I have to perform and extra machining step to correct it.
The ad shows a "high quench chamber" which clearly has no step. I received a .020" step because they had to bore this set of heads in house. So far I have received an explanation but no resolution.
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1965 Beetle sedan
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Thu Sep 22, 2016 3:51 pm Post subject: Re: Best street head to hit the market in many years |
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| I agree that needs to be addressed. |
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Matthew
Samba Member
Joined: January 29, 2004
Posts: 1760
Location: Eastern Tennessee
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| Posted: Fri Sep 23, 2016 3:59 pm Post subject: Re: Best street head to hit the market in many years |
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My issue has been settled. All good. Now I can get to setting up the top end on my 2017!
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1965 Beetle sedan
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Fri Sep 23, 2016 7:48 pm Post subject: Re: Best street head to hit the market in many years |
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| sweet. |
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dsrtfox
Samba Member
Joined: August 25, 2009
Posts: 443
Location: Phoenix
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| Posted: Fri Sep 23, 2016 8:55 pm Post subject: Re: Best street head to hit the market in many years |
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| How was your issue settled ? |
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Matthew
Samba Member
Joined: January 29, 2004
Posts: 1760
Location: Eastern Tennessee
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| Posted: Sat Sep 24, 2016 11:54 am Post subject: Re: Best street head to hit the market in many years |
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| dsrtfox wrote: |
| How was your issue settled ? |
I chose to machine them myself since I don't want to wait on another set of heads. I have been compensated for the additional work I will put into them.
I'm looking forward to running them. I think they will be perfect for my combo.
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1965 Beetle sedan
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dsrtfox
Samba Member
Joined: August 25, 2009
Posts: 443
Location: Phoenix
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| Posted: Sat Sep 24, 2016 10:34 pm Post subject: Re: Best street head to hit the market in many years |
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| Good deal... |
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Brian
Samba Moderator
Joined: May 28, 2012
Posts: 8340
Location: Oceanside
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| Posted: Sun Sep 25, 2016 5:53 pm Post subject: Re: Best street head to hit the market in many years |
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That's awesome that they compensated
Wonder how these would fair on my 2007cc tractor motor.
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'69 Bug
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dmar836
Samba Member
Joined: September 17, 2016
Posts: 50
Location: Midwest, USA
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| Posted: Sun Sep 25, 2016 8:10 pm Post subject: Re: Best street head to hit the market in many years |
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| Guess I had better measure mine with no step then. They are supposed to be for 90.5s. |
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dmar836
Samba Member
Joined: September 17, 2016
Posts: 50
Location: Midwest, USA
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| Posted: Wed Oct 19, 2016 7:42 am Post subject: Re: Best street head to hit the market in many years |
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Mine are indeed cut for 90.5 and have no step. Non-CNC version shows a consistent 55cc across the board.
Has anyone been running these yet? Impressions?
Dave
KC |
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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3293
Location: Rapid City, SD
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| Posted: Wed Oct 19, 2016 8:51 am Post subject: Re: Best street head to hit the market in many years |
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| dmar836 wrote: |
Has anyone been running these yet? Impressions?
Dave
KC |
Bottom of page 6 is my report.
The heads are still kicking ass. He has about 3000 very hard miles on them now in the limo bus. He said it has been averaging 15-16mpg loaded with 12 people and probably weighing 6500lbs or more. It maintains speed on hills much better then the last engine without down shifting.
Brian |
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dmar836
Samba Member
Joined: September 17, 2016
Posts: 50
Location: Midwest, USA
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| Posted: Wed Oct 19, 2016 9:37 am Post subject: Re: Best street head to hit the market in many years |
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Nice work! Sure sounds like an odd use of a VW but certainly attests to it's ability. These are the first aftermarket vw heads I've ordered. I feel the slight ridge at the rapid 90 degree exhaust turn. Wondering if anyone has smoothed that?
Dave |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Wed Oct 19, 2016 10:50 am Post subject: Re: Best street head to hit the market in many years |
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be carfull messing with the short side turn on the ex if you dont know exzactly what can be done and not hurt the flow. it's simple but also simple to screw up. Ive somany good heads screwed up by somabody that thought they knew what they were doing.
as far as the buss b rian put them on thats a very good exzample of what a small port properly contoured can do. wish i could just buy a set to throw on my 2028 to see just how much better it would run.I know it's over ported as it is, 72 cc as I recall port volume on my mofoco's042's. but i just booked my europeen vacation (Milan Italy,Swizzzerland,Germany etc). so...probably no car more parts for a while....like I realy need more parts.  |
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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3293
Location: Rapid City, SD
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| Posted: Wed Oct 19, 2016 12:53 pm Post subject: Re: Best street head to hit the market in many years |
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| dmar836 wrote: |
Nice work! Sure sounds like an odd use of a VW but certainly attests to it's ability. These are the first aftermarket vw heads I've ordered. I feel the slight ridge at the rapid 90 degree exhaust turn. Wondering if anyone has smoothed that?
Dave |
Just leave them alone. Removing any of the small ridges in mine would not have shown any improvement on my flow bench. Only thing you will do is risk nicking a seat while you are in there. Then you will have to pay to get the seats re-cut locally.
Brian |
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bugguy1967
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Joined: January 16, 2008
Posts: 4343
Location: Los Angeles, CA 90016
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